{
ChangeState ( EventData::SELECTION_HANDLE_PANNING );
- if( handleNewPosition != mEventData->mLeftSelectionPosition )
+ if( ( handleNewPosition != mEventData->mLeftSelectionPosition ) &&
+ ( handleNewPosition != mEventData->mRightSelectionPosition ) )
{
mEventData->mLeftSelectionPosition = handleNewPosition;
{
ChangeState ( EventData::SELECTION_HANDLE_PANNING );
- if( handleNewPosition != mEventData->mRightSelectionPosition )
+ if( ( handleNewPosition != mEventData->mRightSelectionPosition ) &&
+ ( handleNewPosition != mEventData->mLeftSelectionPosition ) )
{
mEventData->mRightSelectionPosition = handleNewPosition;
if( handleStopScrolling )
{
- mEventData->mUpdateLeftSelectionPosition = mEventData->mLeftSelectionPosition != handlePosition;
+ mEventData->mUpdateLeftSelectionPosition = ( mEventData->mLeftSelectionPosition != handlePosition ) && ( mEventData->mRightSelectionPosition != handlePosition);
mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateLeftSelectionPosition;
- mEventData->mLeftSelectionPosition = handlePosition;
if( mEventData->mUpdateLeftSelectionPosition )
{
+ mEventData->mLeftSelectionPosition = handlePosition;
+
RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
mEventData->mRightSelectionPosition );
}
if( handleStopScrolling )
{
- mEventData->mUpdateRightSelectionPosition = mEventData->mRightSelectionPosition != handlePosition;
+ mEventData->mUpdateRightSelectionPosition = ( mEventData->mRightSelectionPosition != handlePosition ) && ( mEventData->mLeftSelectionPosition != handlePosition );
mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateRightSelectionPosition;
- mEventData->mRightSelectionPosition = handlePosition;
if( mEventData->mUpdateRightSelectionPosition )
{
+ mEventData->mRightSelectionPosition = handlePosition;
RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
mEventData->mRightSelectionPosition );
}
{
const float xSpeed = event.p2.mFloat;
const Vector2& actualSize = mVisualModel->GetActualSize();
+ const Vector2 currentScrollPosition = mEventData->mScrollPosition;
mEventData->mScrollPosition.x += xSpeed;
ClampHorizontalScroll( actualSize );
- const bool leftSelectionHandleEvent = Event::LEFT_SELECTION_HANDLE_EVENT == event.type;
- const bool rightSelectionHandleEvent = Event::RIGHT_SELECTION_HANDLE_EVENT == event.type;
-
- if( Event::GRAB_HANDLE_EVENT == event.type )
+ if( Vector2::ZERO == ( currentScrollPosition - mEventData->mScrollPosition ) )
{
- ChangeState( EventData::GRAB_HANDLE_PANNING );
+ // Notify the decorator there is no more text to scroll.
+ // The decorator won't send more scroll events.
+ mEventData->mDecorator->NotifyEndOfScroll();
}
- else if( leftSelectionHandleEvent || rightSelectionHandleEvent )
+ else
{
- // TODO: This is recalculating the selection box every time the text is scrolled with the selection handles.
- // Think if something can be done to save power.
+ const bool scrollRightDirection = xSpeed > 0.f;
+ const bool leftSelectionHandleEvent = Event::LEFT_SELECTION_HANDLE_EVENT == event.type;
+ const bool rightSelectionHandleEvent = Event::RIGHT_SELECTION_HANDLE_EVENT == event.type;
- ChangeState( EventData::SELECTION_HANDLE_PANNING );
+ if( Event::GRAB_HANDLE_EVENT == event.type )
+ {
+ ChangeState( EventData::GRAB_HANDLE_PANNING );
- const Vector2& position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
+ Vector2 position = mEventData->mDecorator->GetPosition( GRAB_HANDLE );
- // Get the new handle position.
- // The selection handle's position is in decorator coords. Need to transforms to text coords.
- const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
- position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+ // Position the grag handle close to either the left or right edge.
+ position.x = scrollRightDirection ? 0.f : mControlSize.width;
- if( leftSelectionHandleEvent )
- {
- mEventData->mUpdateLeftSelectionPosition = handlePosition != mEventData->mLeftSelectionPosition;
- mEventData->mLeftSelectionPosition = handlePosition;
+ // Get the new handle position.
+ // The grab handle's position is in decorator coords. Need to transforms to text coords.
+ const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
+ position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+
+ mEventData->mUpdateCursorPosition = mEventData->mPrimaryCursorPosition != handlePosition;
+ mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateCursorPosition;
+ mEventData->mPrimaryCursorPosition = handlePosition;
}
- else
+ else if( leftSelectionHandleEvent || rightSelectionHandleEvent )
{
- mEventData->mUpdateRightSelectionPosition = handlePosition != mEventData->mRightSelectionPosition;
- mEventData->mRightSelectionPosition = handlePosition;
- }
+ // TODO: This is recalculating the selection box every time the text is scrolled with the selection handles.
+ // Think if something can be done to save power.
- if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition )
- {
- RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
- mEventData->mRightSelectionPosition );
+ ChangeState( EventData::SELECTION_HANDLE_PANNING );
+
+ Vector2 position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
+
+ // Position the selection handle close to either the left or right edge.
+ position.x = scrollRightDirection ? 0.f : mControlSize.width;
+
+ // Get the new handle position.
+ // The selection handle's position is in decorator coords. Need to transforms to text coords.
+ const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
+ position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+
+ if( leftSelectionHandleEvent )
+ {
+ mEventData->mUpdateLeftSelectionPosition = handlePosition != mEventData->mLeftSelectionPosition;
+ mEventData->mLeftSelectionPosition = handlePosition;
+ }
+ else
+ {
+ mEventData->mUpdateRightSelectionPosition = handlePosition != mEventData->mRightSelectionPosition;
+ mEventData->mRightSelectionPosition = handlePosition;
+ }
+
+ if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition )
+ {
+ RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+ mEventData->mRightSelectionPosition );
+
+ mEventData->mScrollAfterUpdatePosition = true;
+ }
}
+ mEventData->mDecoratorUpdated = true;
}
- mEventData->mDecoratorUpdated = true;
} // end ( HANDLE_SCROLLING == state )
}
const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+ const CharacterIndex leftPosition = mEventData->mLeftSelectionPosition;
+ const CharacterIndex rightPosition = mEventData->mRightSelectionPosition;
+
RepositionSelectionHandles( xPosition,
yPosition );
- mEventData->mScrollAfterUpdatePosition = true;
- mEventData->mUpdateLeftSelectionPosition = true;
- mEventData->mUpdateRightSelectionPosition = true;
+ mEventData->mUpdateLeftSelectionPosition = leftPosition != mEventData->mLeftSelectionPosition;
+ mEventData->mUpdateRightSelectionPosition = rightPosition != mEventData->mRightSelectionPosition;
+
+ mEventData->mScrollAfterUpdatePosition = ( ( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition ) &&
+ ( mEventData->mLeftSelectionPosition != mEventData->mRightSelectionPosition ) );
}
}